平面汇交力系合成的结果是一个（）。合力的大小和方向等于原力系中各力的（）。

平面汇交力系合成的结果是一个合力，合力的大小和方向等于原力系中各力的（）。

合力的大小和方向等于原力系中各力的（）。

平面汇交力系合成的结果是一个合力合力的矢量等于力系中各力的矢量和。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

平面汇交力系合成的结果是一个（）。合力的大小和方向等于原力系中各力的（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。